National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Harrisburg-Raleigh Airport (KHSB)

Lat: 37.81°NLon: 88.54°WElev: 387ft.

Fair

79°F

26°C

Humidity 81%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 1 Sep 8:35 pm CDT
Extended Forecast for

3 Miles N Cave In Rock IL

Extreme Heat Warning until September 5, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning until September 5, 08:00pm

    NOW until 8:00pm Sat

    Extreme Heat Warning

  • Tonight

    Low: 75 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 96 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 75. Calm wind.

    Low: 75 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 97. Calm wind becoming south southwest around 5 mph in the afternoon.

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 75. Calm wind.

    Low: 75 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 97. Calm wind.

    High: 97 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of showers and thunderstorms, mainly after 1pm. Sunny, with a high near 96. Calm wind.

    High: 96 °F

    Slight Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
Clear, with a low around 75. Light south southwest wind.
Wednesday
Sunny, with a high near 96. Calm wind becoming south southwest around 5 mph in the afternoon.
Wednesday Night
Clear, with a low around 75. Calm wind.
Thursday
Sunny and hot, with a high near 97. Calm wind becoming south southwest around 5 mph in the afternoon.
Thursday Night
Clear, with a low around 75. Calm wind.
Friday
Sunny and hot, with a high near 97. Calm wind.
Friday Night
Mostly clear, with a low around 74. Calm wind.
Saturday
A chance of showers and thunderstorms, mainly after 1pm. Sunny, with a high near 96. Calm wind.
Saturday Night
Partly cloudy, with a low around 71. Calm wind.
Sunday
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 92. Calm wind becoming north northeast around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 69. Light east wind.
Labor Day
Sunny, with a high near 90. Calm wind becoming east around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 68. Light east wind.
Tuesday
Sunny, with a high near 89. South wind 3 to 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Cave In Rock IL
 37.57°N 88.25°W
Last Update:
5:56 pm CDT Sep 1, 2026
Forecast Valid:
8pm CDT Sep 1, 2026-6pm CDT Sep 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation